No sound when playing an audio clip from a website

I'm trying to play an audio clip on a website. The site shows that the clip is playing, but I have no sound. My speakers are on and none of my volume mixers are muted. I played a clip from a different website and had sound. I spoke with Customer Service for the website where I'm not getting sound, and they tried playing the same clip on their computer, using Firefox, and it played the sound. I also tried playing a different clip on the same website, but again didn't have sound.

I'm using Firefox 16.0.2 on Windows XP

I'm trying to play an audio clip on a website. The site shows that the clip is playing, but I have no sound. My speakers are on and none of my volume mixers are muted. I played a clip from a different website and had sound. I spoke with Customer Service for the website where I'm not getting sound, and they tried playing the same clip on their computer, using Firefox, and it played the sound. I also tried playing a different clip on the same website, but again didn't have sound.
I'm using Firefox 16.0.2 on Windows XP

You can click the Volume icon on the Windows Taskbar near the clock and click the Mixer link at the bottom to open the mixer.
You can adjust the volume level for each application in that window, so make sure that Firefox is not muted or set at a low level.
Current Firefox versions use the plugin-container process to run plugins, so you need to check the volume setting for the plugin-container process.
You will only see the Firefox program or the Plugin Container in the Mixer if you are on a website that plays sound.

You can click the Volume icon on the Windows Taskbar near the clock and click the Mixer link at the bottom to open the mixer.<br />
You can adjust the volume level for each application in that window, so make sure that Firefox is not muted or set at a low level.<br />
Current Firefox versions use the plugin-container process to run plugins, so you need to check the volume setting for the plugin-container process.<br />
You will only see the Firefox program or the Plugin Container in the Mixer if you are on a website that plays sound.
See:
* https://support.mozilla.org/kb/No+sound+in+Firefox
* https://support.mozilla.org/kb/Video+or+audio+does+not+play
----
You can clear the Flash local storage and settings if the Flash player is involved.
*Windows Control Panel > Flash Player > Storage: Local Storage Settings
**Remove a specific domain: Local Storage Settings by site
**Remove all domains: Delete All and Delete Data
Flash Website Storage Settings panel:
*http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html
Global Storage Settings Panel:
*http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager03.html

When I start my photoshow in the PHOTOSHOW website the sound starts during the opening scene (TITLE PAGE). When the first picture comes on the sound STOPS.

I am using Firefox 20 and have updated all of the required plugins.

Internet Explorer has no problem showing the Photoshow pictures with sound.

I don't know what to do at this point.

Any help with be appreciated.

When I start my photoshow in the PHOTOSHOW website the sound starts during the opening scene (TITLE PAGE). When the first picture comes on the sound STOPS.
I am using Firefox 20 and have updated all of the required plugins.
Internet Explorer has no problem showing the Photoshow pictures with sound.
I don't know what to do at this point.
Any help with be appreciated.